Antifriction bearing



0a. 8, 1935. K L, HERRMANN 2,016,924 1 ANTIFRICTION B EARING Filed June28, 193% I I VEN TOR. Karl Z. Herrmann Patented Oct. 8, 1935 1 UNITEDSTATES 2,016,924 ANTIFRICTION BEARING Karl L. Herrmann, South Bend, Ind.

Application June 28,

' 3 Claims.

This invention relates to anti-friction bearings and particularlyto thefull roller type of hearing, the principal object being to provideretainers for the ends of the rollers formed to cooperate with a ring toprovide the outer race member for.

the rollers.

Another object is to provide in a bearing of the full roller type, aresilient split outer race member and end flanges therefor to maintainthe outer race member in true cylindrical form and to preventdisplacement of the rollers relative to the outer race member.

Another object is to provide in a bearing of the full roller type, asplit ring forming an outer race member and flange members secured tothe split ring, the flanges being formed to provide retaining'means formaintaining the rollers in as-' sembled position when the inner race.member is removed. x

Another object is to provide a method of forming and assembling rollerretainers in which a split ring forming one of the race members for thebearing has attached thereto atits ends, a pair of flanges or rings formaintaining the outer race meniber in true cylindrical form, the flangesbeing formed to project beneath the tapered or rounded ends of therollers to prevent accidental displacement of the rollers from'thebearing.

Other objects, and objects relating to'details of construction andmethods of manufacture, will be apparent from the detailed descriptionto follow.

In the drawing inwhich like numerals refer to like parts throughout -theseveral views,

tion Fig. 1 is a longitudinal sectional view showing one form of myinvention, certain of the parts being in full lines to better illustratethe construc- Fig. 2 is a side elevational view of the outer race memberand the retainers for the ends of' the rollers shown in separatedrelation.

Fig. 3 is a view similar to Fig. 1, showing an other form of myinvention. a 3 Fig. 4 isa view similar to Fig. 2, showing th outer racemember and roller retainers illustrated Fig. 5 is aview similar to Fig.1, showing another form of my invention. I

Figs. 6, 6A and 6B are views showing respectively the outer race memberand the roller retainers illustrated in Fig. 5, in end elevation. Fig.'7 is a view similar to Fig. 1, showing anothe modification of myinvention.

members shown in Fig. 7,

Fig. 8 is a side elevationalview 01 the outerrace I 1934, Serial No.732,890

Fig. 9 is a view similar-to Fig. 1, showing still another form of myinvention.

Fig. 10 is a. view similar to Fig. 2, showing the several parts inseparated position Referring particularly to Figs. 1 and 2, I have shownan inner race member In which may be a shaft, or any suitable member,and have diagrammatically illustrated supports l I therefor which, ifdesired, may be spaced to' prevent movement of the bearing presently tobe described longitudinally on the inner race member ID. I'have shown amember l2 encircling the hearing which may be a support for the bearingand inner race member, if desired. As illustrated, the outer race membercomprises a split ring l3 which normally is expanded to leave the gap orspace M between the adjacent ends ll of the ring. Two cup-shaped membersl5 which may be identical in construction and shape are placed over theopposite side faces of the outer race member i3, the inner diameters ofthe flanges IS on the cup-shaped members l5 being of a size whereby theouter race 'member i3 will be compressed so that the ends l1 thereofwill abut against each other, as shown in Fig. 1, to thereby provide acontinuous uninterrupted race member. If desired, the cup-shaped membersl5 may be welded to the outer race member l3 and alsothe ends I! of thering may be welded and ground to prevent spreading and to provide acontinuous member. The flanges l8 of the cup-shaped member l5 arepreferably bent inwardly at I9 to extend beneath the rounded or 'taperedends of the rollers 20 to thereby prevent the rollers from dropping outof the retainer after they have been assembled in the bearing. Thecup-shaped members l5 are preferably formed of rather light gaugematerial so that the flanges l8 thereof will spring sufliciently topermit the rollers 20 to be snapped into position in the bearing afterwhich they will not readily come 40 out due to the inturned ends l9, asillustrated. I have thus provided a bearing in which the outer racemember IS, the roller retainer members I5 and the rollers 20 may beassembled and handled as a unit withoutthe rollers becoming displacedwhile .the assembly is removed from the inner race member.

In Figs. 3 and 4 -I have shown a slightly difl'erent form ofconstruction in which the outer race member I3 is split to normallyprovide a space it between the ends 2| of the ring, as shown in 'Fig. 4,the outer race member l3 having a central portion 22 and. reduced sideportions 23 provided with grooves 24 therein adjacent to the centralPart 22. The cup-shaped retainers 25 ar sim ilar to the retainers l5,shown in Figs. 1 and 2, and are formed so that when the flange 26thereof are inserted over the respective side portions 23 of the outerrace member, the outer race member will be compressed so that the ends2i thereof will abut against each other, as shown in Fig. 3. The inneredges of the cup-shaped members may then be beaded over at 2'2 into thegrooves 2G to thus maintain the outer race member I3 and the cup-shapedretainers 25 in assembled relationship.

As in the previously described construction, the outer race member l3and the cup-shaped members 25 may be welded together, if desired, and

also the split ends of the outer race member 13 may also be welded wherethat added operation is deemed desirable. The flanges 28 of the cup"shaped members 25 have inturned edges 29 which fit under the tapered orrounded ends of the rollers 28 to maintain the latter in assembledrelationship in the same manner as in the previously describedconstruction.

In Fig. 3 I have indicated diagrammatically the inner race member Hillwhich may take the form of a shaft, as shown in Fig. l, or such otherconstruction as may be desired. Also in this form of my invention, theouter race member l3, the roller retainers 25 and the rollers 20 may beassembled and handled as a unit without the rollers becoming displacedwhile the assembly is separated from the inner race member.

In Figs. and 6 is illustrated a construction in which the outer racemember 38! is normally compressed (see Fig. 6) so that the ends 3|thereof overlap each other. The retainers for the ends of the rollers 20each comprise a ring 32 having the inner edges thereof bent inwardly at33 to fit under the tapered or rounded ends of the rollers in the samemanner as previously described, the

rings 32 preferably being offset at 34 to provide flanges 35. Inassembling this bearing, the outer race member 30 is expanded until therings 32 are inserted into the sides thereof with the flanges 35abutting against the edges of the outer race member, as clearly shown inFig. 5. When assembled, the ends 3| of the split outer race member 30will abut against each other asin the previously described constructionand the ends may be welded together, if desired. In this construc-'-tion the outer race member 30 is expanded to provide a cylindrical outerrace member, whereas in the previously described construction, the outerrace member is contracted when assembled for use. The rollers 20- areinserted in the same manner as previously described and are maintainedin assembled relationship in the hearing as the inturned edges 33 of thering 32 will prevent the rollers from dropping out of the hearing beforethe same is assembled over the inner race member.

In Figs. 7 and 8, I have omitted the split outer ring and have providedtwo cup-shaped members 36 each having inwardly directed flanges 31pressed inwardly at 38 to retain the rollers in assembled position inthe same manner as previously described. The abutting faces of thecupshaped members 36 may be welded together, if desired, to thus form aunitary structure which is suitable for certain types of use'wherein itis desired to use a cheaper construction than that shown in the previousviews.

In Figs. 9 and 10, I have shown a split outer race member ill like thatshown in Figs. 1 and 2 against the end of which are mounted a pair ofrings ii having their inner edges pressed inwardly at 42 to fit underthe rounded or tapered 5 ends of the rollers 2|] in the same manner aspreviously described, there being a pair of cupshaped members 43inserted over the rings 68 and the outer race member Ml for maintainingthe respective parts in assembled position and welded together, ifdesired, it being apparent that the edge faces of the split ring so abutagainst each other and'that they may also be welded, if desired.'I'he'outer race member Ml, as shown in Figs. 9 and 10, is contractedfrom its normal expanded condition, shown in Fig. 10, in the same mannerthat the outer race member, shown in Figs. 1 to 4 inclusive, iscontracted to provide a continuous ring or cylinder.

In the several views, I have shown the ring which comprises the outerrace member, as being split in V-form which is desirable in that therollers contact with both parts of the ring as they rotate relativethereto. It will be evident, however, that the ring may be split in anydesired fashion as, for example, in a line obliquely to the side edgesthereof, or to form a tongue and groove, as my invention is not to belimited to the V-form shown.

Throughout the several views I have shown a construction adaptable foran outer race member and retainers for the bearings, it being, ofcourse, understood that the parts may be reversed to provide an innerrace member without departing from the spirit and substance of myinvention. While I have shown several embodiments of my invention, it isto be understood that formal changes and changes relating to details ofconstruction and methods of manufacture may be resorted to withoutdeparting from the spirit and substance of my invention, the scope ofwhich is commensurate with the appended claims.

What I claim is: 1. An anti-friction bearing comprising, an inner racemember, an outer race member com- 45 prising, a split ring normallynon-cylindrical in form and means engaging the side faces of said ringto compress the same into cylindrical form, rollers interposed betweensaid race members, and means on said first means to maintain saidrollers in assembled position.

2. An anti-fricton bearing comprising, an inner race member, a splitring having a central portion and side portions having thinner wallsthan the central portion, said ring being normally noncylindrical inform, cup-shaped members each having a portion thereof encircling saidside portions of said ring and compressing the same into cylindricalform to provide an outer race member, and rollers interposed betweensaid race members and. between said cup-shaped members.

3. An anti-friction bearing comprising, an inner race member, a splitring normally non-cylindrical in form, means at the opposed sides-oisaid ring to spring the same into cylindrical form to provide an outerrace member, means to secure said first means and ring together, rollersinterposed between said race members, and means to maintain said rollersin assembled position.

KARL L. HERRMANN.

